Excerpt: Seems well constructed and threaded easily onto my 24-120 Nikon lens. I also didn't have any issues with the lens cap. As far as telling if it is quality glass, I really have no way of knowing other than to say my photos look fine.
Pros: Clear Optics, Easily Mounted, Firm Mount, Strong Construction
Excerpt: Great clear filter for protecting quality lenses. Since there is no color to the filter you don't need to worry about making any corrections. The glass is quality glass and really doesn't impact the quality of the picture when using professional lenses.
Excerpt: UV filters are very popular recommendations for lens protection with many retailers. The problem is that they tend to diminish resolution even with the more expensive alternatives. For years I went without this added protection because of the distortion.
Pros: Clear Optics, Easily Mounted, Strong Construction